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April 21st, 2021

CMP Warns Against High-Pressure Loads in Garands and 1903s

CMP .30-06 ammo ammunition safety warning M1 Garand m1903 1903a3 50000 CUP high pressure

The Civilian Marksmanship Program (CMP) has issued an ammunition safety advisory to all users of M1 Garands, M1903s, and M1903A3 rifles. Ammunition that is loaded beyond 50,000 Copper Units of Pressure (CUP) and using bullets weighing more than 172 grains should be limited to modern rifles, and NOT USED in old military rifles aged 70+ years.

CMP .30-06 ammo ammunition safety warning M1 Garand m1903 1903a3 50000 CUP high pressure

After this warning was issued by the CMP, the California Rifle and Pistol Association (CRPA) provided further safety recommendations for owners or older firearms:

CRPA Ammunition and Older Firearms Guidelines
Many of us have either purchased or inherited firearms in excess of 25 years of age. The issue … noted as an example by the Civilian Marksmanship Program in regards to certain ammunition leads as they apply to the M1 Garand is not isolated to that particular firearm. The CRPA… has seen similar issues exposed with other [older] firearms when using modern loads. We strongly advise you to check with the manufacturer for recommended load limitations before purchasing modern ammunition for an older firearm.

CRPA also recommends these safety procedures:

Have a gunsmith check your older firearm for safety prior to using it.

Take a reloading class to help develop a safe load for your older firearm.

Inspect older ammunition for defects such as a green patina or rust build up on the cases or crystallization on the projectiles. If defects are observed, the CRPA suggests disassembling the ammo into components for proper recycling and disposal.

Storage of Ammo for Older Rifles
The CRPA also cautioned that you should be cautious about older ammo that may be decades old, including old milsurp ammunition. The CRPA advises:

1. Store ammunition in a cool, dry, location where little temperature fluctuation occurs.
2. If storing ammunition in an air/watertight ammo can, utilize water absorbent silica packs and place packs in the can with the ammunition.
3. Conduct periodic checks every 12-24 months and replace the silica packs as needed.

CRPA Notification provided by EdLongrange

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Permalink Bullets, Brass, Ammo, Competition, News, Tech Tip No Comments »
September 30th, 2013

New CMP Custom Shop Will Repair and Upgrade USGI Rifles

CMP Custom Shop Civilian Marksmanship ProgramOver the years, many Civilian Marksmanship Program firearms purchasers have asked if the CMP would consider offering reliable, reasonably-priced and prompt maintenance, repair and upgrade of USGI-issue rifles. The CMP has responded and the answer is “YES”.

Starting October 1, 2013, the CMP Custom Shop (Anniston, AL) opens for business, providing a wide variety of repair, upgrade and custom services for a wide range of U.S. Military rifles, specifically those issued in early eras. As well as regular repairs (and troubleshooting), the CMP Custom Shop will be able to perform virtually any normal upgrading, accurizing, customizing, and refinishing for the types of rifles the CMP sells.

CMP will work on the M1 Garand, M1 Carbine, 1903 and 1903A3 Springfield, the 1917 Enfield and the Krag. Other rifles like the Remington 40X, Mossberg 44, and H&R Model 12 can also be serviced. CMP will NOT work on shotguns, pistols, revolvers, M14/M1A, AR15-style rifles or other commercially-produced modern rifles. For a list of services (with prices) visit the CMP Custom Shop webpage.

cmp custom shop USGI rifle repairs

NOTE: Before you can send a rifle to the CMP Custom Shop you must be a customer on file in the CMP system. Customers must meet the same eligibility requirements as for CMP rifle purchases. Once qualified, you can purchase a rifle from the CMP and have the CMP Custom Shop make modifications to it prior to shipping.

CMP Custom Shop Can Work on USGI Rifles Purchased from Other Sources
The CMP Custom Shop can work on rifles that may have been purchased elsewhere as long as they were made by a USGI contractor. Some examples include: Springfield Armory (not Springfield Inc.), Harrington & Richardson, Winchester, International Harvester, Remington, Rock Island, Eddystone, Inland, Underwood, Rock-Ola, Quality Hardware, National Postal meter, Standard Products, IBM, Irwin-Pederson and Saginaw. NOTE: There are many NON-USGI copies of the M1 Garand, 1903 Springfield and especially the M1 Carbine that CMP will be unable to work on.

CMP Custom Shop Garand 1903 repair

CMP Custom Shop Garand 1903 repairFor more information, call (256) 835-8455, x1113, or send email to customshop [at] thecmp.org. Shipping and Correspondence address for the CMP Custom Shop is:

CMP Custom Shop
1803 Coleman Rd
Anniston, AL 36207

Permalink Competition, Gunsmithing, News 3 Comments »